id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
10180	Fixed bug saving inlineformset_factory formsets	Simon Litchfield	nobody	"The inlineformset_factory formset save() method was setting it's fk using the 'myfk_id' no problem, but then overwriting it with form data that used 'myfk'. For new records, the form's 'myfk' is empty, so up comes an IntegrityError since null fk's were attempting to be saved. This same code used to work fine, so I assume something has fallen inconsistent around ModelForm field naming, or fk.name/fk.get_attname().

Example --

{{{
class App(models.Model):
    company = models.CharField(max_length=100, verbose_name='company name')
...
class AppMember(models.Model):
    app = models.ForeignKey(App, related_name='members')
    name = models.CharField(max_length=50)
...
AppMemberFormSet = inlineformset_factory(App, AppMember, extra=10)
...
formset = AppMemberFormSet(data=request.POST or None)
...
formset.instance = app  # A saved app instance with an ID
formset.save()  # Error
}}}
"		closed	Forms	1.0		wontfix			Accepted	1	0	1	0	0	0